Chemical Kinetics Quiz 9 – Punjab Meritorious School Preparation Portal

Welcome to your 14th Sep Chemical Kinetics Quiz 9 CBT TEST

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Name

School Name with City

Phone Number

300

120

280

In a zero-order reaction for every 10 °C rise of temperature, the rate is doubled. If the temperature is increased from 10 °C to 100 °C, the rate of the reaction will become :

256 times

512 times

64 times

128 times

The unit of rate constant for a zero-order reaction is

Which one of the following statements for the order of a reaction is incorrect ?

Order can be determined only experimentally.

Order is not influenced by stoichiometric coefficient of the reactants.

Order of reaction is sum of power to the concentration terms of reactants to express the rate of reaction.

Order of reaction is always whole number.

For the reaction A + B → products, it is observed that:

(1) On doubling the initial concentration of A only, the rate of reaction is also doubled and

(2) On doubling the initial concentrations of both A and B, there is a change by a factor of 8 in the rate of the reaction. The rate of this reaction is given by:

During the kinetic study of the reaction, 2A + B → C + D, following results were obtained:

Run	[A](mol L^–1)	[B](mol L^–1)	Initial rate of formation of D (mol L^–1min^–1)
I	0.1	0.1	6.0 × 10^–3
II	0.3	0.2	7.2 × 10^–2
III	0.3	0.4	2.88 × 10^–1
IV	0.4	0.1	2.40 × 10^–2

Based on the above data which one of the following is correct?

During the kinetic study of the reaction, 2A + B → C + D, following results were obtained:

For an endothermic reaction, energy of activation is E_a and enthalpy of reaction of ∆H (both of these in kJ/mol). Minimum value of E_a will be.

less than ∆H

equal to ∆H

more than ∆H

equal to zero

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